Lubricator.



No. 659,243. Patented Uct. 9, |900. H. F. LOGS. LUBRICATUR (Applicationmad Doc: 8, 1898.)

(No Model.)

/N VEN 706 Imm/5555s,I

M ..."-MQM ATTRNHYS UNITED STATES HEINRICH FRIEDRICH LOOS,

PATENT OFFICE.

or NUREMBERG, GERMANY.

LUBRICATO R.

SPECIFICATION formingphrt of Letters Patent No. 659,243, dated October9, 1900. Application tiled December 3, 1898. Serial No. 698,183. (Nomodel.)

To all whom t may concer-71,:

Be it known that I, HEINRICHFRIEDRICH LOOS, a subject of the King` ofBavaria, residing at Nuremberg, Bavaria, Germany, have invented certainnew and useful Improvements in Lubricators, of which the following is aspecification.

The present invention concerns anew lubricator intended to serveprincipally for bicycles or similar vehicles in which the lubricatormust participate in the revolution. In this grease-box, which isentirely dust and oil proof when closed, a lid-cap adjustable intelescopic manner in the lubricator-boX and provided with a lateralfilling-aperture is ap-` plied.

The essential point of the present invention is that after strongpressure on the lidcap the latter jumps up automatically, and thusexposes the filling-hole, which action will not take place if `a gentlepressure'is applied. This action of the new lubricatingboX is obtainedby the arrangement illustrated in Figures I to V of the accompanyingdrawings.

In the drawings, Fig. I is a sectional view of the invention with theparts in position to permit filling of the lubricator. Fig. II is a viewsimilar to Fig. I, but with the parts in closed position. Fig. III is aview of the cap detached. Fig. IV is a View of the invention similartoFig. I with the parts under the pressure necessary to cause the outwardmovement of the cap. Fig. V is a view similar to Fig. IV with the cap inthe act of moving outward.

The lid-capb c, provided with a lateral filling-mouth o., is arrangedtelescopically in the reservoir of lubricator d proper and renderedelastic by several longitudinal slots arranged at the lower rim. Aspring within the reservoir d, between the bottom K and the inner walllof the lid-cap, always tends to press the cap upward.

In Fig. I the lid-cap b cis at its highest position, in which the inletor filling aperture at is free." In order to close the lubricatingbox,the cap is gently pressed downward. In

this operation, Fig. II, the reinforcement or swelling e of the rimarranged at the lower end of the cap slides over and past the contractedpart f of the lubricating-reservoir d, in which action it contractsspringily, and after the displacement it expands again,owing to its ownelasticity, so that the edge e locks below the edge f. In this lockingposition the inlet or fillingA aperture d is covered by the wall of thelubricating-reservoir d. The release of the cap and exposure of theinlet take place by means of stronger pressure on the cap, Fig. IV, whenthe latter is pressed into the conical opening g of a ring h, looselyarranged in the lubricator d. Thereby the rim or edge e is once morecontracted and temporarily connected with the ring h bythe elasticity ofthis reinforcement and the friction at the points of contact. After thepressure exerted by the operator on the lid e is removed the spring ibegins to act. This spring throws up the cap, Fig.` V, and the ring h,remaining in engagement with the lower part e of the cap, holds the samecontracted, as shown in Fig. V, so that this will pass by the edge f inthe quick upward movement of the lid-cap without catching on the saidedge, and the ring h is iinally slipped oit from the portion e by comingin contact with the edge f, which action is about totake place in Fig.V. From'vthis it will be seen that the cap is brought into a position inwhich the inlet or filling aperture a is once more accessible, as inFig. I.

I claim- In combination with the reservoir d, contracted at f, the ringhseated therein and having an interior conical bearing-surface, a capfitting in the reservoir and having a spring-wall and a lower edge eadapted to enter the said conical bearing-surface, said cap having alsoa lateral filling opening and a spring t' for pressing the cap upwardly,substantially as described.

In witness whereof I have hereunto set my hand in presence of twowitnesses.

HEINRICH FRIEDRICH LOOS.

Witnesses:

ANDREAS STICH, OSCAR BooK.

